Physics, Astronomy & Cosmology / Re: what would happen ifI gravitational mass were different than inertial mass?« on: 13/05/2021 18:30:17 »
So Jeffery I believe your last post contradicts your previous post.Hi all,
So JefferyWhile you can state F = ma this is not the same as saying F = mg. No force is felt in the second equation. So F ≠ mg.
If what you state is correct, how do my bathroom scales work ?
Your bathroom scales work by preventing gravity from moving an object. The tension in a spring will do it. The tension propagates through the spring until it overcomes gravity. Gravity does not propagate through objects, otherwise you would be able to measure your acceleration during free fall.
Look at the slinky drop video in slow motion and see the tension acting against gravity. It is not gravity propagating through the slinky but the release of tension.
This is why the two Fs in the equation about are not the same. Also why I believe you will never be able to properly measure a difference between mi and mg.
As a spring scale follows Hooke’s Law
Which measures Force 🤔
And the force propagates through the spring. Gravity does that only indirectly. It pulls the weight which changes the stress on the spring. If you were put in place of the weight you would feel the acceleration as the stress on the spring slowed you down. You would not feel this acceleration in free fall. It's force Jim, but not as we know it.